Courses
Courses for Kids
Free study material
Offline Centres
More
Store Icon
Store
seo-qna
SearchIcon
banner

Which alcohol of molecular formula C4H9OH cannot be obtained by the reduction of carbonyl compound?
A. 2methylpropan1ol
B. 2methylpropan2ol
C. Butanol
D. Butan2ol

Answer
VerifiedVerified
494.4k+ views
like imagedislike image
Hint: At first, we need to construct all the structures of the possible alcohols from C4H9OH. Then we can examine which of them cannot be obtained from the reduction of carbonyl compounds.

Complete step by step answer:
 Here is the structure of C4H9OH, which is a primary alcohol with 4 carbon in their structure:
seo images

Here are following structures of the options mentioned in the question:
The structure of 2methylpropan1ol:
seo images

From the structure we can see that it cannot be obtained from the primary alcohol which is mentioned in the question. So this is the correct answer.

The structure of 2methylpropan2ol:
seo images

From the structure we can see that it can be obtained from the primary alcohol which is mentioned in the question. So this is not the correct answer.

The structure of Butanol:
seo images

From the structure we can see that it can be obtained from the primary alcohol which is mentioned in the question. So this is not the correct answer.

The structure of Butan2ol:
seo images

From the structure we can see that it can be obtained from the primary alcohol which is mentioned in the question. So this is not the correct answer.
So as we can see that out of the mentioned options only 2methylpropan2ol is not obtained by the reduction of carbonyl compounds.
Therefore, the correct answer to this question is 2methylpropan2ol.
So, the correct answer is “Option B”.

Additional Information:
Here are some properties of carbonyl compounds, which should be known:
1. These are to be polar in nature. They exhibit both positive and negative charge in slight form.
2. These compounds are reported to be insoluble in water but sometimes they dissolve other forms of polar molecules.
3. These are known to be reactive compounds.

Note: By carbonyl compound, we mean a functional group composed of a carbon atom double bonded to an oxygen atom. The functional group is represented as C=O.
    2methylpropan2olcan be obtained from ethanol. Ethanol has a formula of C2H5OH.
Latest Vedantu courses for you
Grade 10 | MAHARASHTRABOARD | SCHOOL | English
Vedantu 10 Maharashtra Pro Lite (2025-26)
calendar iconAcademic year 2025-26
language iconENGLISH
book iconUnlimited access till final school exam
tick
School Full course for MAHARASHTRABOARD students
PhysicsPhysics
BiologyBiology
ChemistryChemistry
MathsMaths
₹34,650 (9% Off)
₹31,500 per year
Select and buy